[1] AMT draws on the psychoanalytic theories of Carl Jung, Sigmund Freud, and Melanie Klein to interpret unconscious processes through musical improvisation.
to have given her insights into psychoanalysis through the combination of verbal processing and nonverbal expression found in improvised music with a structured, purposeful framework.
In the early 1970s, Priestley met weekly with colleagues Marjorie Wardle and Peter Wright to experiment with therapeutic techniques using improvised music.
Temple University (Philadelphia) has created an archive of Priestley's published writings, along with those of others on the topic of Analytical Music Therapy.
Also included are her personal/clinical diaries and audiotapes of clinical work with approximately 75 clients, spanning the period of 1971 to 1990.